After more than four decades of research and development, a : GMAT Sentence Correction (SC)
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# After more than four decades of research and development, a

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SVP
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06 Nov 2005, 11:22
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After more than four decades of research and development, a new type of jet engine is being tested that could eventually propel aircraft anywhere in the world within two hours or help boost cargoes into space at significantly lower costs than current methods permit.

A. tested that could eventually propel aircraft anywhere in the world within two hours or help
B. tested that could eventually have the capability of propelling aircraft anywhere in the world within two hours or to help
C. tested, eventually able to propel aircraft anywhere in the world within two hours, or helping
D. tested, and it eventually could propel aircraft anywhere in the world within two hours or helping
E. tested, and it could eventually have the capability to propel aircraft anywhere in the world within two hours or help
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Manager
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Re: SC # Jet engine [#permalink]

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06 Nov 2005, 11:42
The akward construction of HELPING at the end should be erased immediately since it is akward and not parallel with the sentence construction so C and D are out. B and E are too wordy for me with the inclusion of capability so I will choose A.
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06 Nov 2005, 13:30
E for me.

A and B can not be correct since "that" would be referring to the action of testing, and an action can not "proper aircraft". C doesn't make much sense and parallelism is not kept. In D and E, the pronoun "it" is introduced in order to refer to the motor. But D is not parallel. Therefore E must be.
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06 Nov 2005, 23:46
I go with 'A'

A - Is the correct answer.
B - Too long.
C,D,E - Can be eliminated straight.
What is the OA?
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Re: SC # Jet engine [#permalink]

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07 Nov 2005, 00:15
My choice is E. I may explain my answer if I am correct.
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07 Nov 2005, 00:58
My guess is E for the same reason that in A 'that' can refer to testing, in E 'it' more closely refers to the jet engine
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07 Nov 2005, 04:22
Good job guys. E is the OA.

automan gave a very good explanation. thanks.
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07 Nov 2005, 04:22
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